Using XFLR5

XFLR5 is an incredibly useful (and free!) tool for aerodynamic analysis on small UAVs, such as those used in the club. We won’t go into the details of the inner workings here, but suffice it to say that a number of assumptions are made in the root analysis coding that only work for this class of plane. It can be used to analyze airfoils, stability, component sizing, and a number of other features to help you nail down your plane design. The program is updated regularly and the author has provided video tutorials of its various features, found in the links below.

1. Foil Analysis

1 Foil analysis

2. Foil Batch Analysis

2 Foil Batch Analysis

3. Type 4 Polars

3 Type 4 Polars

4. Flapped Foil

4 Flapped Foil

4.1. Foil Analysis - Tips and Tricks

4.1 Foil Analysis - Tips and Tricks

5. Inverse Foil Design

5 Inverse Foil Design

6. Foil Polar Mesh

6 Foil Polar Mesh

7. Design a Plane

7 Design a Plane

8. Plane Analysis

8 Plane analysis

8.1. Reference Dimensions

8.1 Reference Dimensions

9. Design a Flapped Wing

9 Design a Flapped Wing

10. Result Analysis

10 Result Analysis

11. Plane Viscous Analysis Erros

11 Plane Viscous Analysis Errors

12. Plane Stability Prerequisites

12 Plane Stability Prerequisites

13. Stability: 3D Modes

13 Stability: 3D Modes

14. Stability: Root Locus Graph

14 Stability: Root Locus Graph

15. Stability: Time Response

15 Stability: Time Response

16. Stability: Sensitivity Analysis

16 Stability: Sensitivity Analysis

16.1. Stability: Control Derivatives

16.1 Stability: Control Derivatives

17. Light and Textures

17 Light and Textures